The player will be unable to dodge as long as Devastator Mode is active. However, the player has full immunity to being staggered while in Devastator Mode.

Devastator Mode also slows movement speed, making it difficult to carry out delivery objectives or evade attacks like Ravager fire effectively.

When active, the player gains several cosmetic UI additions to their HUD, including a picture-in-picture-style view of the action. The visual image will remain unchanged when the player is equipped with Geth Scanner gear.

Similar to Adrenaline Rush, when a player activates Devastator Mode it will cause the clip to instantly reload if used at the right time. Note, however, that the time it takes to activate Devastator Mode is often longer than a reload animation, except on a Particle Rifle that has run out of charge. One can deactivate then reactivate Devastator Mode with a reasonable cooldown that is shorter than the overheat reload.

Devastator Mode cannot increase the capacity of single- or two-shot magazine weapons, regardless of magazine capacity upgrade levels. This is because capacity is rounded down (1.35 = 1 shot). As such it would be very unwise to go for magazine capacity with said weapons, since they only really gain accuracy and damage.

The Executioner Pistol is the only one-shot weapon capable of gaining an extra shot with level V Pistol Magazine Upgrade. Devastator Mode provides an inherent 20% magazine capacity increase, so the Magazine Size evolution is unnecessary for this purpose.

The Magazine Size evolution works extremely well with the Particle Rifle, especially if the Assault Rifle Magazine Upgrade is also used with it. With maximum Magazine Size evolution and a level V Magazine Upgrade, the Particle Rifle's capacity becomes significantly increased and allows for greatly extended firing.